So you are suggesting Longleat has higher standards of welfare than ZSL? I very much doubt it. Have you seen where the Hippos are kept in winter when the lake freezes over? Have you or anyone else seen their indoor accommodation? This honestly isn't a personal dig at you but a ? against everyone who looks at that lake and thinks how wonderful it is! There is a bigger picture here as there always is with safari parks, particularly Longleat!!